The quilted pattern you get on your nails when you go to
bed too soon after painting them with
nail varnish.
N.B. Even when your nail varnish appears to be
dry, you are still at risk of squeeble.
Girl One: "I'm going to
bed"
Girl
Two: "
Haven't you just painted your nails?"
Girl One: "Yeah... Like an hour ago"
Girl Two: "BEWARE THE SQUEEBLE!!"